York YCHBC User Manual

L23952Y 1-05
INSTALLATION, OPERATION, & MAINTENANCE
FAN COIL
AIR CONDITIONERS
Supersedes: Form 115.20-NOM2 (1199)
Form 115.20-NOM2 (105)
***** WARNING TO INSTALLER, SERVICE PERSONNEL AND OWNER *****
Altering the product or replacing parts with non authorized factory parts voids all warranty or
implied warranty and may result in adverse operational performance and/or a possible hazardous
safety condition to service personnel and occupants. Company employees and/or contractors are
not authorized to waive this warning.
MODEL YHBC – Ceiling Concealed Model
MODEL YHH – Ceiling Concealed Model with Electric Heat
MODEL YPHBC – Ceiling Concealed Model with Insulated
Return. Plenum and Filter
MODEL YPHH – Ceiling Concealed Model with Electric
Heat, Insulated Return Plenum and Filter
MODEL YCHBC – Ceiling Cabinet Model
MODEL YRHBC – Telescoping / Recessed Ceiling Model
MODEL YHYB – High Capacity Ceiling Concealed Model
MODEL YPHYB – High Capacity Ceiling Concealed Model
with Insulated Return Plenum and Filter
Notes:
1. 2-Pipe units have one water coil. 4-Pipe units have two water coils.
2. Changeover is used to select heating or cooling mode.
3. YORK International does not recommend “fan cycle” applications for cooling on unit mounted thermostats.
4. For proper operation, control valve must be normally closed.
5. Aquastats provided where required.
6. Electric Heat is only available in the YHH and YPHH units. These units require a remote thermostat (low voltage 4 wire thermostat).
00168VIP
00170VIP
00171VIP
00172VIP
00173VIP
00174VIP
00175VIP

York YCHBC Specifications

General

Frequency	60Hz
Compressor Type	Scroll
Voltage	208-230V
Dimensions (LxWxH)	Varies by model
Weight	Varies by model

Summary

Installation Guide for York Fan Coil Air Conditioners

Equipment Receiving and Inspection

Process for inspecting equipment upon arrival and handling any initial damage.

Unit Storage Procedures

Guidelines for storing the unit in a dry location to prevent damage from moisture and dust.

Ceiling Mounting Preparation

Ensuring secure mounting provisions and sufficient structural support for the equipment.

Electrical Wiring Requirements

Details on electrical wiring compliance, diagrams, and connection points for power supply.

Piping System Installation

Information on sizing, installation, and material requirements for water piping.

Valve Cluster Assembly

Instructions for installing 2-way and 3-way motorized valve assemblies correctly.

Condensate Drain Piping Setup

Requirements for condensate drain line installation to ensure proper drainage and prevent backups.

Fan Coil Unit Startup Checklist

Pre-Operation Installation Checks

Pre-operation checks for equipment installation, ductwork, and clearances.

Unit Cleaning Before Startup

Procedures for cleaning the unit's interior, drain pan, and filters before operation.

Control System Verification

Verification of power supply, grounding, and electrical connections for unit controls.

Fan and Blower Inspection

Checking fan components, bearings, and blower wheel for proper installation and free rotation.

Routine Fan Coil Maintenance

Blower Motor Care

Guidance on cleaning and lubricating the blower motor bearings annually.

Fan Coil Unit Coil Cleaning

Methods for cleaning fan coil unit coils using compressed air, water, or detergent.

Air Filter Service

Recommendations for regular inspection, cleaning, or replacement of air filters based on conditions.

Interior Unit Cleaning

Annual cleaning of the unit's interior, fans, coils, and drain pan.